Meaning : Stop work in order to press demands.
Example :
The auto workers are striking for higher wages.
The employees walked out when their demand for better benefits was not met.
Synonyms : strike
Meaning : Leave abruptly, often in protest or anger.
Example :
The customer that was not served walked out.
Meaning : Leave suddenly, often as an expression of disapproval.
Example :
She walked out on her husband and children.